42402460091 has 2 divisors, whose sum is σ = 42402460092. Its totient is φ = 42402460090.

The previous prime is 42402460033. The next prime is 42402460099. The reversal of 42402460091 is 19006420424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42402460091 - 2³⁰ = 41328718267 is a prime.

It is not a weakly prime, because it can be changed into another prime (42402460099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21201230045 + 21201230046.

It is an arithmetic number, because the mean of its divisors is an integer number (21201230046).

Almost surely, 2^42402460091 is an apocalyptic number.

42402460091 is a deficient number, since it is larger than the sum of its proper divisors (1).

42402460091 is an equidigital number, since it uses as much as digits as its factorization.

42402460091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 42402460091 in words is "forty-two billion, four hundred two million, four hundred sixty thousand, ninety-one".